JVC SP-THD5C, Service Manual

Page: 19 / 67

(No.MB618)1-19
SECTION 4
ADJUSTMENT
4.1 ATTENTION IN SERVICE OF DVD SECTION
(1) When pickup, Flash ROM ,DVD module board were changed, initialize EEPROM by all means.
(2) When full initialization was executed, execute learning with a DVD test disc by all means.
Test disc : VT-501, VT-502
Learning method : It is adjusted automatically by normal playback of a DVD disc.
4.2 DVD TEST MODE
4.2.1 Content of correspondence TEST MODE
(1) Version, Region, Learning status check mode
(2) NORMAL initialize, FULL initialize
(3) Device key write(CPPM, CPRM)
(4) Device key checksum indication mode
(5) Micon version indication mode
(6) FL all on mode
(7) FRONT END check mode
4.2.2 Mode transition
TEST MODE into the press [SOURC key] and [POWER key] together of main body, connect the AC power.
After into the TEST MODE, mode select by [MENU key].
4.2.3 Processing details
The communication of operated FL(LCD) display and DVD back end microcomputer is shown as follows.
*It is assumed to be OK to differ from the content of the specification because the number of digits is different according to the set for
the FL(LCD) display.
*It is assumed to be OK to differ from the content of the specification because it also has the relation between arrangement and pres-
ence by the set also for the key.
Version, Region, Learning
status indication mode
Micon version
indication mode
FRONT END
check mode
FL all on
mode
Device key
checksum
mode
NORMAL
initialize
FULL
initialize
Device key
write
POWER+AC
MENU key
MENU key
MENU key
MENU key MENU key MENU key
SOURCE key B.SKIP
F.SKIP key 4sec
long press
STEP Operation Movement Remarks
FL(LCD)indication
J C #
1 3 2 4 6 5 7 9 8 10 12 11 13
1
Version indication
The display to the version code is as
follows.
0x01:JC 0x02:1U 0x03:D 0x04:E
0x05:2U 0x06:3U 0x07:UB 0x08:UT
0x09:4U 0x0a:UY 0x0b:EE 0x0c:UF
Region indication (# part)
Learning from the back end is displayed
in the 11th digit and the 12th digit
of the FL display.
Blank indication at 0xFF
AC is pulled out, and
double press [SOURCE]
and [POWER] key of the
main body
2 Keep step 1, connect AC Version, Region, Learning
status indication mode
Power on by test mode,
version indication to FL
Study status (11th column)
0x07: BCA CHECK OK incomplete
DVD learning incomplete
CD learning incomplete (indication 7)
0x06: BCA CHECK OK incomplete
DVD learning complete
CD learning incomplete (indication 6)
0x05: BCA CHECK OK incomplete
DVD learning incomplete
CD learning complete (indication 5)
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